In our recent letter [1]} we
paid more attention to the terminology. We
decided to
choose \(N_{}= 2\) 
and to
replace the CHSP
Hilbert-space doublet (REF )
by triplet
\(\lbrace {\cal H}_{math},{\cal H}_{intermediate},{\cal H}_{phys}\rbrace \ = \ \lbrace {\cal R}_{2},{\cal R}_{1},{\cal R}_{0}\rbrace \,.\) 
